Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 166, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jun 2, 2021, 9:17 PM CDT for Burnet County, Travis County, Williamson County, Texas. It was in force for 58 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 2, 2021, 9:17 PM CDT (02:17 UTC)
- Expired
- Jun 2, 2021, 10:15 PM CDT
- In force
- 58 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Burnet County, TX, Travis County, TX, Williamson County, TX
The radar
The Ft Hood radar (KGRK), 42 km from the middle of the area, began a volume at 02:16 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 2, 10:02 PM CDT | HAIL 0.25 | 5 Nne Austin, TX |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 2.3 hours before the alert went out and 252 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 446 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1405 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 80 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.3
The text
As transmitted.
612
WUUS54 KEWX 030217
SVREWX
TXC053-453-491-030315-
/O.NEW.KEWX.SV.W.0166.210603T0217Z-210603T0315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Austin/San Antonio TX
917 PM CDT Wed Jun 2 2021
The National Weather Service in Austin San Antonio has issued a
* Severe Thunderstorm Warning for...
Southwestern Williamson County in south central Texas...
Northwestern Travis County in south central Texas...
Southeastern Burnet County in south central Texas...
* Until 1015 PM CDT.
* At 917 PM CDT, severe thunderstorms were located along a line
extending from Oatmeal to near Smithwick to near Spicewood, moving
east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Austin, Round Rock, Cedar Park, Georgetown, Pflugerville, Bertram,
Anderson Mill, Serenada, Windemere, Leander, Lakeway, Lago Vista,
Hudson Bend, Liberty Hill, Jarrell, Weir, Spicewood, Georgetown
Dam, Oatmeal and Sun City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3079 9761 3055 9761 3030 9770 3044 9818
3077 9811
TIME...MOT...LOC 0217Z 275DEG 23KT 3071 9809 3058 9809 3043 9815
HAIL...1.00IN
WIND...60MPH
$$
PLATT2 follow-up statements
775
WWUS54 KEWX 030233
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
933 PM CDT Wed Jun 2 2021
TXC053-030243-
/O.CAN.KEWX.SV.W.0166.000000T0000Z-210603T0315Z/
Burnet TX-
933 PM CDT Wed Jun 2 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BURNET COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3064 9761 3055 9761 3030 9770 3041 9809
3070 9799
TIME...MOT...LOC 0233Z 290DEG 26KT 3064 9798 3053 9797 3041 9797
$$
TXC453-491-030315-
/O.CON.KEWX.SV.W.0166.000000T0000Z-210603T0315Z/
Williamson TX-Travis TX-
933 PM CDT Wed Jun 2 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR SOUTHWESTERN WILLIAMSON AND NORTHWESTERN TRAVIS COUNTIES...
At 933 PM CDT, severe thunderstorms were located along a line
extending from near Liberty Hill to near Lago Vista to near Hudson
Bend, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Austin, Round Rock, Cedar Park, Georgetown, Pflugerville, Anderson
Mill, Windemere, Leander, Lakeway, Lago Vista, Hudson Bend, Liberty
Hill, Mansfield Dam, Jonestown, Briarcliff, Point Venture, Volente,
Brushy Creek, Wells Branch and Jollyville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3064 9761 3055 9761 3030 9770 3041 9809
3070 9799
TIME...MOT...LOC 0233Z 290DEG 26KT 3064 9798 3053 9797 3041 9797
HAIL...1.00IN
WIND...60MPH
$$
PLATT493
WWUS54 KEWX 030300
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
1000 PM CDT Wed Jun 2 2021
TXC453-491-030315-
/O.CON.KEWX.SV.W.0166.000000T0000Z-210603T0315Z/
Williamson TX-Travis TX-
1000 PM CDT Wed Jun 2 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR SOUTHWESTERN WILLIAMSON AND CENTRAL TRAVIS COUNTIES...
At 1000 PM CDT, severe thunderstorms were located along a line
extending from near Round Rock to near Windemere to near Austin,
moving east at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Austin, Round Rock, Cedar Park, Georgetown, Pflugerville, Anderson
Mill, Windemere, Leander, Camp Mabry, Brushy Creek, Wells Branch and
Jollyville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3064 9761 3055 9761 3030 9770 3036 9791
3067 9781
TIME...MOT...LOC 0300Z 255DEG 13KT 3056 9771 3045 9770 3034 9772
HAIL...1.00IN
WIND...60MPH
$$
PLATTThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 2, 7:37 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 53 min |
| Jun 2, 7:59 PM CDT | Areal Flood Advisory | EWX | Burnet, Llano | 3 hr |
| Jun 2, 8:23 PM CDT | Areal Flood Advisory | EWX | Williamson | 3 hr |
| Jun 2, 8:29 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 61 min |
| Jun 2, 8:41 PM CDT | Special Weather Statement | EWX | Travis | 49 min |
| Jun 2, 8:50 PM CDT | Flash Flood Warning | EWX | Burnet, Williamson | 3 hr |
| Jun 2, 9:50 PM CDT | Special Weather Statement | EWX | Lee | 40 min |
| Jun 2, 9:52 PM CDT | Special Weather Statement | EWX | Williamson | 38 min |
| Jun 2, 10:14 PM CDT | Special Weather Statement | EWX | Bastrop, Travis | 46 min |
| Jun 3, 8:21 AM CDT | Areal Flood Advisory | EWX | Llano | 3 hr |
| Jun 3, 9:42 AM CDT | Areal Flood Advisory | EWX | Blanco, Gillespie, Hays, Kendall | 3 hr |
| Jun 3, 12:34 PM CDT | Areal Flood Advisory | EWX | Atascosa, Bexar, Wilson | 3 hr |
| Jun 3, 1:45 PM CDT | Areal Flood Advisory | EWX | Bastrop, Lee, Travis | 2 hr |
| Jun 3, 1:51 PM CDT | Areal Flood Advisory | EWX | Bexar, DeWitt, Gonzales, Guadalupe, Karnes, Wilson | 3 hr |
| Jun 3, 2:42 PM CDT | Areal Flood Advisory | EWX | Atascosa, Karnes, Wilson | 4 hr |
| Jun 3, 2:49 PM CDT | River Flood Warning | EWX | Blanco | 6 hr |
| Jun 3, 3:44 PM CDT | Areal Flood Advisory | EWX | DeWitt, Lavaca | 5 hr |
| Jun 3, 5:03 PM CDT | Areal Flood Advisory | EWX | DeWitt, Gonzales, Guadalupe, Karnes, Wilson | 3 hr |
| Jun 3, 5:22 PM CDT | Areal Flood Advisory | EWX | Bastrop, Caldwell, Fayette, Gonzales, Guadalupe, Lavaca | 3 hr |
| Jun 3, 6:05 PM CDT | River Flood Warning | EWX | DeWitt | 3 days |
| Jun 3, 6:45 PM CDT | Areal Flood Advisory | EWX | Karnes, Wilson | 2 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.